Ibn Sina (Avicenna)

The pulse is a messenger that carries news from the interior of the body.

The urine is a looking glass of the body's functions.

A little wine is a medicine for the body and the soul.

The air that we breathe has a great influence upon our health.

Exercise is the greatest preservative of health.

The best exercise is that which is moderate and regular.

The physician must know the temperament of the patient, the season, and the country.

The brain is the seat of sensation and movement.

The liver is the seat of nutrition and blood formation.

The lungs are the instrument of voice and respiration.

The kidneys are the purifiers of the blood.

The eye is the window of the soul.

The ear is the organ of hearing and balance.

The nose is the organ of smell and respiration.

The tongue is the organ of taste and speech.

The skin is the organ of touch and protection.

The bones are the framework of the body.

The muscles are the instruments of movement.

The nerves are the messengers of sensation and movement.

The blood is the carrier of life and nourishment.